231002331312 has 40 divisors (see below), whose sum is σ = 596948352880. Its totient is φ = 76975960320.

The previous prime is 231002331311. The next prime is 231002331337. The reversal of 231002331312 is 213133200132.

It is not an unprimeable number, because it can be changed into a prime (231002331311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624739 + ... + 923202.

It is an arithmetic number, because the mean of its divisors is an integer number (14923708822).

Almost surely, 2^231002331312 is an apocalyptic number.

It is an amenable number.

231002331312 is an abundant number, since it is smaller than the sum of its proper divisors (365946021568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231002331312 is a wasteful number, since it uses less digits than its factorization.

231002331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551061 (or 1551055 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231002331312 its reverse (213133200132), we get a palindrome (444135531444).

The spelling of 231002331312 in words is "two hundred thirty-one billion, two million, three hundred thirty-one thousand, three hundred twelve".